Edward Snowden, a former NSA employee, told Spanish TV channel Sexta that efforts by the US intelligence services are ineffective and have not prevented any attack whatsoever.
According to Snowden, total surveillance programs are merely justified by preventing terrorist attacks. In fact, they are used for diplomatic manipulations, economic espionage, and social control.
Snowden also recounted that he attempted to contact American government multiple times, to "come to an agreement," to ensure a just trial, but so far he only managed to receive guarantees that he "won't be tortured".
Snowden also said that he never worked for Russian government. As he explained, he "planned it all so that no government could press on him." In fact, Snowden accused the US for "locking him up" in Russia.